[Tooling] Secure Claude workflows#4037
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Pull request overview
This PR hardens the Claude GitHub Actions workflows by preventing execution on fork/external PRs prior to checkout/action execution, pinning the checkout action to an immutable commit SHA, and constraining PR review feedback to inline-only where top-level commenting isn’t permitted.
Changes:
- Add a “Check PR origin” gate that queries the PR head repository and skips execution for external/fork PRs.
- Pin
actions/checkoutto a specific commit SHA (v7.0.0) and apply conditional execution to checkout/Claude steps. - Remove top-level PR comment capability from the PR review workflow prompt/tool allowlist to match granted permissions.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| .github/workflows/claude.yml | Adds a pre-check to block Claude runs on external PRs and pins checkout to an immutable SHA. |
| .github/workflows/claude-pr-review.yml | Adds the same pre-check/pinned checkout and restricts the Claude tooling/prompt to inline-only feedback. |
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Summary
@claudereview comments only from trusted commenters and skip Claude workflows on fork/external PRs before checkout or Claude execution.